IFF (GB) Ltd in Haverhill (United Kingdom) is a subsidiary of International Flavours & Fragrances with 13,000 employees worldwide is a leading innovator of sensorial experiences that move the world. At the heart of their company, they are fuelled by a sense of discovery, constantly asking “what if?” That passion for exploration drives them to co-create unique scents and tastes for fine fragrances and beauty, detergents and household goods, and well-loved foods and beverages.
IFF stands for sustainability and strives for improvement of the environment and therefore wanted to cut back detrimental emission of gas. Ravebo was asked to develop a scrubber for cleaning process gasses as already done for IFF in Tilburg Netherlands.
We designed and manufactured a custom made two stage PE (polyethylene) scrubber that was specially configured for the removal of dust particles and odors from a gas flow which has a throughput of 5600 Am3/hr at 90 °C.Before entering the scrubber we developed and built a custom made AISI316 pipe quench which is fitted to cool down the gas to protect the scrubber. The quench is provided with extra nozzles which will be connected directly to the fresh water supply trough a normally open valve to protect the scrubber in case of failure. The gas that needs to be scrubbed, enters the scrubber at the bottom. The integration of the gas particles takes place by washing the gas very intense by the use of special nozzles which generate a very fine droplet spectrum and a uniform spray pattern. The spray water is conditioned to remove the fat particles from the gas. The additive is added by measuring the pH and the saturated washing liquid is drained. The washing liquid will be collected at the bottom of the scrubber, where it is pumped back to the nozzles via a centrifugal pump.
The droplets with captured particles need to be separated from the gas by a high efficient separator.